Identify this Gecko?

This gecko belonged to a friend of mine, and was sent to me to care for after falling ill.
I took him (Stewie is the gecko's name) to the vets yesterday, where sadly he had to be put down. in the picture attached, is where he was healthy.

He developed a vitamin and calcium deficiency, and xrays showed he had several broken bones in each leg, and also pretty bad infection which ate away at the elbow.

The vet was unable to identify this species, and sent an email to a different herp.

When I received Stewie, he had the appearance of a Leopard gecko and Gargoyle gecko.
However, looking at this picture of when he was healthy, I am unsure of identity.